EQUATION OF EXCHANGE: An equation that specifies the relation between the money supply, the velocity of money, the price level, and real production. The equation is stated as M*V = P*Q, where M is the money supply, V is the velocity, P is the price level, and Q is real production. This equation is a key component of the quantity theory of money, which offers an explanation between the money supply and inflation.

     See also | money supply | price level | real production | monetarism | quantity theory of money | inflation |